I think it's a combination of the style you like and your dogs structure. I train heads up heeling as I like it more than the UK wrap around style, but my beagle heels quite differently to my Malinois as they are quite different dogs structurally.

Here's an example of how my Mal heels, to me it's my ideal style of heel work. I didn't do anything to train the head position specifically, I teach her heel position and to focus on my face and make direct eye contact and the rest happens pretty naturally.